5-Iodo-1-phenyl-1H-pyrazole CAS 141998-92-7
| CAS No. | 141998-92-7 |
| Molecular Formula | C9H7IN2 |
| Molecular Weight | 270.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Iodo-1-phenyl-1H-pyrazole (CAS 141998-92-7), molecular formula C9H7IN2 and molecular weight 270.07 g/mol, is a CATO reference standard with documented purity and traceability.
5-Iodo-1-phenyl-1H-pyrazole (C9H7IN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, iodine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H7IN2 |
| Molecular Weight | 270.07 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Iodo Standards
- 4-Iodo-2-phenyl-1H-imidazole (CAS 114748-88-8)
- 3-Iodo-4-phenyl-1H-pyrazole (CAS 1238062-17-3)
- 1-Iodo-8-naphthol (CAS 128542-52-9)
- 1-Iodo-6-naphthol (CAS 128542-54-1)
- 4-Iodo-1-phenyl-1H-imidazole (CAS 1334541-27-3)
- 3-Iodo-1-phenyl-1h-pyrazole (CAS 141998-90-5)
- 1-Iodo-2-naphthol, 97% (CAS 2033-42-3)
- 2-Iodo-1-phenyl-1H-imidazole (CAS 49572-59-0)
Recommended Standards
- 5-Iodoquinolin-8-amine (CAS 142340-15-6)
- 2-(2,5-Dichloropyridin-4-yl)pyrimidine-5-carboxylic acid (CAS 1416439-33-2)
- 5-Iodoisoquinolin-8-amine (CAS 1512345-29-7)
- 4-(3-Iodophenyl)-1h-pyrazole (CAS 1399654-75-1)
- (4-Bromo-2,3-difluoro-6-methoxyphenyl)(methyl)sulfane (CAS 2635937-85-6)
- rac 4-Bocamino-2-phenyl-butyric acid, 98% (CAS 790227-48-4)
- (4,6-Difluoropyridin-3-yl)methanol (CAS 1806367-95-2)
- 3-Cyanopropanamide (CAS 61892-68-0)
- 1-Benzothiophene-2,3-Dione (CAS 493-57-2)
- 2-(Chloromethyl)-7-(trifluoromethoxy)benzo[d]oxazole (CAS 1806304-49-3)
- 5-(5-Bromothiophen-2-yl)isoxazole (CAS 138716-31-1)
- 3-(2-Methylphenoxy)propane-1-sulfonyl chloride (CAS 1018340-64-1)
- Fmoc-Met-OPfp (CAS 86060-94-8)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
Why CATO?
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